Source
r/Amd•
bwalk

Memory clock scaling for multi-screen setups fixed

Discussion

So, I didn't find any discussion or even a mention of this fact, but I think this is quite some news. Looks like that memory clock scaling is fixed in the latest driver when driving multiple displays. Before the patch memory clock was always maxed out. In the comments of this thread there was not much hope given that this will be fixed ever, but since 16.11.4 my memory clock on the RX 480 idles at 300 MHz consistently.

So, this is another big thanks to AMD from a satisfied customer who choose the right color for his GPU. Keep on the good work.

Posted Nov 21, 2016, 9:14 AM UTC

714
Saladino_93Phenom II x6 1100T | RX480 Nitro+ OC•

For me it still is locked at 2000mhz, but that is maybe because I use 1 144hz & 1 60hz monitor.

3
MrLawbreakerAMD R9 390•

1 144hz & 1 60hz monitor

Same setup here and it still maxes out :( Currently running the 144hz one at 120 where i do not get that problem.

1
Lt_DuckweedRX480 GTR@1475/2100(1625 timings) 1.275v | [email protected] 1.45v•

Holy shit thanks for this! Just switching to 120 dropped my idle power usage into the single digits!

1
shay99i5-6500 / Nitro+ RX480 8GB•

Thx for the useful information, now I have a reason to download it

2
shay99i5-6500 / Nitro+ RX480 8GB•

Thx for the useful information, now I have a reason to download it

2
Voodoo_gurui5 4690k | RX 480 Nitro+ OC•

This is fantastic news! Unfortunately mine is still locked at 2000 MHz, with 2x 60 Hz monitors. Perhaps this is due to one 1200p monitor? What setups are you guys using that successfully downclocks?

2
m4tf4jCore i7 6700, 24GB RAM, R9 390X•

3 1080p60hz and one 2560x1080 at 75 and I'm idling at around 300-400mhz

2
hojnikbi5 3570K, SSD 180GB, iGPU•

this will greatly reduce indle power consumption, which is great !

2
zivkovicjanI7 [email protected], Sapphire R9 390, 16gb DDR4 @3000Mhz•

I'm having this issue aswell(1080p 144hz on dvi, 1280x1024 60hz on hdmi).Also on a similar topic, still waiting for them to fix the bug that happens if I disconnect a monitor(or turn it off) and everything moves to the monitor connected. I would be happy if I could have this done only when I wanted(startup & button press). Now I have to turn the monitors on in a correct sequence for them to work correctly(I wake the computer from sleep, and to prevent windows all moving to the same screen)...

2
ZephyrkoPhenom II X6 1090T | Sapphire Nitro+ RX 470 4G•

This indeed is very useful, thank you

1
ZephyrkoPhenom II X6 1090T | Sapphire Nitro+ RX 470 4G•

does not work for me though)

1
OftenSarcastic9001 WaitMarks™ | Vegan Zen Moments•

Are you using a combination of DVI and HDMI by any chance?

I've got one monitor at 1080p60hz on DVI and one monitor at 2160p60hz on DP, driver version 16.11.4 with an R9 290, and my memory clock is still stuck at maximum with both monitors on.

1
bwalkOP•

No, HDMI and DP. Both monitors are 1080p60Hz.

1
Admixues3570K/7950 1300/1700> fk it waiting for vega•

same DVI-D+HDMI i have to run an under clocked profile / MAX oc profile it dosnt bother me tho

1